Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Brand Name | BJK |
| Country of Origin | Japan |
| Material | Chrome Steel GCr15 |
| Seal Type | ZZ (Metal) / 2RS (Rubber) |
| Precision Rating | ABEC-7 |
| Inner Diameter Range | 2mm - 9mm |
| Outer Diameter Range | 5mm - 19mm |
| Width Range | 2.5mm - 5mm |
| Cage Material | Steel |
| Lubrication | Pre-lubricated with Light Oil |
Anonymous
Mar 18, 2026
Rating: 5/5
Quiet bearings
Replaced noisy fans in my RC car with these. The noise reduction is significant. They spin freely and handle high RPMs without heating up.
Anonymous
Mar 18, 2026
Rating: 4/5
Good value
Quality is good and they seem genuine. Packaging was a bit basic but the bearings themselves are well protected in individual sleeves. Would buy again.
Anonymous
Mar 13, 2026
Rating: 5/5
Smooth operation for drones
Used these F688Z bearings for my drone motor upgrades. The rotation is incredibly smooth and there is virtually no lateral play. Definitely noticed a difference in flight stability.
Anonymous
Jan 30, 2026
Rating: 5/5
Genuine Japan import feel
You can tell the difference in machining quality. The flanges are straight and the tolerances are tight. Fast shipping too.
Anonymous
Jan 24, 2026
Rating: 5/5
Great fit for 3D printer
F685Z matched perfectly on my extruder fan shaft. Quality feels superior to the generic Chinese bearings I used before. Highly recommend for precision tasks.
Q: What is the maximum RPM rating for the F689Z?
A: While specific RPM depends on load and lubrication, these ABEC-7 bearings are suitable for high-speed applications typical in RC and drones.
Q: Which size bearing fits the Tamiya Mini 4WD gearbox?
A: It depends on the specific model and modification, but F683 and F685 are commonly used in Mini 4WD builds. Please check your manual.
Q: Are these bearings made of stainless steel?
A: No, these are made of high-carbon Chrome Steel GCr15 for durability and load capacity. They are not stainless steel.
Q: Do you sell single pieces or only in lots?
A: These are sold in lots of 10 pieces per size to ensure you have spares. We do not currently offer single unit sales.
Q: Can I return them if the size is wrong?
A: Yes, we accept returns within 30 days provided the package is unopened and the bearings are unused.
2026 Spring PEP New Edition Primary English Grade 3 Volume 2 Four-Line Three-Grid Word Cards for Teachers, Open Class Competition Creative Blackboard Design, Teaching Contest Blackboard Strips and Teaching Aids
$11.30
Cold Brew Yogurt Fermentation Equipment - Manual Old-Style Yogurt Processing and Filling Line
$113,050.00
Electric Spray Painting Pen Set for Babies and Toddlers, Non-Toxic Washable Watercolor Markers, Drawing Tool Kit Toy
$49.50
![[Buy 2 Get 10% Off] Painted Double-Layer Wool Felt Mat for Calligraphy and Painting](https://www.gosteppe.com/cache/small/product/270133/legacy-main-a12ad5b62abb27a9a45afaf4.png)
[Buy 2 Get 10% Off] Painted Double-Layer Wool Felt Mat for Calligraphy and Painting
$7.48
Compact Home Range Hood, Portable USB Desktop Smoke Extractor for Living Room Hot Pot and BBQ Odor Removal
$41.00
Office and Home Computer Cable Management Sleeve - Desktop Data Cord Organizer and PC Wire Collector
$6.50
Linear Bearing
$75.47
Thickened Aluminum Alloy Stainless Steel Floor Wire Raceway - Surface-Mounted Cable Cover Protector, Anti-Crush, Self-Adhesive Invisible Design
$2.13
Kids Foam Stamp Brushes - Mushroom-Tipped Painting Set for Kindergarten Art and Graffiti Projects
$2.38
Heisidike HZL-32 Portable Stone Removal Hook for Car Tire Tread Cleaning
$9.28
Bixilage Cheese Processing Equipment – Curd Fermentation Machine for Stretchy Hand-Pulled Cheese Production Line
$67,900.00
Essential Oil Soap Stamping Machine DIY Stamp Maker Semi-Auto Pneumatic Stampler Small Handmade Soap Equipment
$2,173.00
Inverted Barrel Water Stand - Simple U-Shaped Thickened Holder for Purified Water Buckets with Dispenser Outlet
$21.00
Qingling Pickup 2.8T Diesel Isuzu 4JB1-T1 Engine Turbocharger Pump Assembly
$1,502.00
Juli JL-499 Heat Resistant up to 150°C Instant Adhesive High Performance Low Whitening Transparent High-Temperature Fast-Drying Glue
$90.30
Stainless Steel Buffet Warmer with Hydraulic Lift - Commercial Electric Heating Chafing Dish
$882.00
Zhaobei New Felt Calligraphy Mat Anti-Pilling Painting Felt Chinese Painting Cloth Brush Character Calligraphy Felt Pad
$29.70
Fruit Picking Bucket with Shoulder Strap, Manual Fertilizer Spreader, Durable Rubber Harvest Container for Seeds and Chemicals
$26.57
Baohong Artist Grade Watercolor Pad - 100% Cotton Pulp, 300gsm, Glued on Four Sides, Available in 16K, 8K, 4K with Cold Press or Hot Press Texture
$42.00
Commercial Brush Peeling Machine for Sweet Potatoes, Ginger, Taro, Mustard Greens, and Kohlrabi
$15.90
No-Drill Invisible Cable Organizer – Self-Adhesive Wire Fixer, Data Cable Clip, and Net Cable Management Solution
$6.90
Stone Landscape Sculpture Engraved Pebble Gate Stone Cornerstone Roadside Marker
$838.05
Kitchen Sink Organizer Rack, Dish Drying Rack, Multi-Function Countertop Storage Shelf for Washing and Placing Bowls
$55.70
New Hanging Kitchen Sink Strainer Basket, Multi-Function Colander for Washing Vegetables and Filtering Leftovers
$7.74
Sting Bite Relief Pen Electric Bug Bite Relief for Indoor
$60.14
Thickened 160g Gouache Paper 8K/4K for Beginners and Art Exam Students - Professional Art Painting Paper for Watercolor, Gouache, and Acrylic Creation and Practice
$5.78
Pad Printing Ink Cup Sealing Ring Rubber Gasket Elastic Rubber Ink Cartridge O-Ring Silicone Ink Leak-Proof Eco-Friendly Ink Cup Seal
$9.70
Stainless Steel Walnut Kernel Peeling Machine - Pecan Physical Peeling Equipment, DDA Washing Unit, Nut Kernel Peeler
$36,315.00
Daxiang Machinery Top-Flow Pillow Packaging Machine for Vegetables, Bread, Mooncakes, Cakes, Food, and Fruit Sealing
$35,475.00
50 Pcs Market Commodity Price Tag ers Advertising Tags Paper
$45.37
![[M2-M20] Stainless Steel Spring Washer](https://www.gosteppe.com/cache/medium/product/16306/legacy-main-ef3d2dba3bde669d48e6cca2.webp)
